Relay Driver. HV9901 Datasheet

HV9901 Driver. Datasheet pdf. Equivalent

Part HV9901
Description Universal Relay Driver
Feature HV9901 Universal Relay Driver Features ► 10 to 450V input voltage range ► Energy saving hold curre.
Manufacture Supertex Inc
Datasheet
Download HV9901 Datasheet




HV9901
HV9901
Universal Relay Driver
Features
10 to 450V input voltage range
Energy saving hold current mode
Adjustable microcontroller supply
Low supply current <1.0mA
Constant current coil
Programmable pull-in current, pull-in time,
and hold current
Efficient PWM operation using the relay
coils’ inductance
Applications
Industrial controls
Relay timers
Solenoid drivers
Home automation
General Description
The Supertex HV9901 is a BiCMOS/DMOS universal relay driver that
employs PWM switching techniques. It is designed for efficient and energy-
saving operation of a low voltage relay with supply voltages ranging from
10 to 450V DC through utilization of the relay coils’ inductance.
The circuit is capable of operating over a wide input voltage range without
requiring a change of any external components. For example, this will
enable users to use 5.0V coil relays for DC voltages 10 to 450V or AC
voltages up to 240V.
The HV9901 has an internal high-voltage regulator to power internal
PWM circuitry. Additionally, it includes an adjustable auxiliary regulator
with a 1.0mA capability that can be used to supply low power micro
controllers.
The pull-in current, pull-in time and hold current are all program-mable
using only two resistors and a capacitor. The PWM switching frequency
can be either:
- Synchronized to an external clock, or
- Synchronized to other HV9901s, where the synchronized
frequency is the highest free-running frequency.
The enable (ENI) logic input is used to turn the relay on/off. Enable
polarity may be selected via the POL input. Audible noise is prevented
using fixed switching frequencies above 20kHz.
WARNING!!! Galvanic isolation is not provided. Dangerous voltages are
present when connected to the AC line. It is the responsibility of the
designer to ensure adequate safeguards are in place to protect the end
user from electrical shock.
Typical Boost Application Circuit
1235 Bordeaux Drive, Sunnyvale, CA 94089 Tel: 408-222-8888 www.supertex.com



HV9901
HV9901
Ordering Information
Device
16-Lead SOIC
9.90x3.90mm body
1.75mm height (max)
1.27mm pitch
HV9901
HV9901NG-G
-G indicates package is RoHS compliant (‘Green’)
Pin Configuration
1
VIN
GT
CS
COM
SYNC
RT
16
VDD
VREF
HOLD/DELAY
FB
VCC
ENI
ENO
POL
Absolute Maximum Ratings
Parameter
Value
Input voltage VIN1
Input voltage to any other pin1
Operating temperature range
-0.5V to +470V
-0.3V to VDD +0.3V
-40°C to +85°C
Continuous Power dissipation (TA = +25°C)2
750mW
Note:
1. All voltages are referenced to COM.
2. For operation above 25°C ambient derate linearly at 7.5 mW/°C.
Stresses beyond those listed under “Absolute Maximum Ratings” may
cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond
those indicated in the operational sections of the specifications is not implied.
Exposure to absolute maximum rating conditions for extended periods may
affect device reliability.
1166--LLee(a(attooddppSSvvOieOiweICwI)C()N(GN)G)
Product Marking
Top Marking
HV9901NG
YWW LLLLLLLL
Y = Last Digit of Year Sealed
WW = Week Sealed
L = Lot Number
Bottom Marking C = Country of Origin
A = Assembler ID*
CCCCCCCCC AAA
= “Green” Packaging
*May be part of top marking
16-Lead SOIC (NG)
Electrical Characteristics (TA = +25°C unless otherwise noted)
Sym Parameter
Min Typ
High Voltage Regulator
VIN Input voltage
10 -
IIN Supply current
--
Max
450
2.0
VDD Internally regulated voltage
8.5 9.0
9.5
UVON VDD under voltage lockout, on
7.8 8.2
8.5
UVHYS VDD under voltage lockout, hysteresis
-
0.5
-
Adjustable Regulator
VCC Regulator output voltage range
2.0 -
5.5
ICC Regulator output current
0 - 1.0
VFB Feedback voltage
0 VREF VDD -1.0V
IFB Input bias current
- 25 100
* Maximum allowable load current limited by power dissipation and operating ambient temperature.
Units
V
mA
V
V
V
V
mA
V
nA
Conditions
ICC = 0 to 1.0mA load
NlooadloaatdICaCt=V1DD.0. mA
CGT = 500pF, fOSC = 25KHz
No load at VDD.
CGT = 500pF,
fOSC = 25KHz
---
---
ICC = 1.0mA load
No load at VDD*
---
VFB = VREF
1235 Bordeaux Drive, Sunnyvale, CA 94089 Tel: 408-222-8888 www.supertex.com
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